1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.service.persistence;
24  
25  import com.liferay.portal.kernel.dao.orm.ORMException;
26  import com.liferay.portal.kernel.dao.orm.Session;
27  import com.liferay.portal.kernel.util.InitialThreadLocal;
28  import com.liferay.portal.model.BaseModel;
29  import com.liferay.portal.util.PropsValues;
30  
31  /**
32   * <a href="BatchSessionImpl.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Raymond Augé
35   * @author Brian Wing Shun Chan
36   */
37  public class BatchSessionImpl implements BatchSession {
38  
39      public boolean isEnabled() {
40          return _enabled.get();
41      }
42  
43      public void setEnabled(boolean enabled) {
44          _enabled.set(enabled);
45      }
46  
47      public void update(Session session, BaseModel<?> model, boolean merge)
48          throws ORMException {
49  
50          if (merge || model.isCachedModel()) {
51              session.merge(model);
52          }
53          else {
54              boolean contains = false;
55  
56              if (isEnabled()) {
57                  Object obj = session.get(
58                      model.getClass(), model.getPrimaryKeyObj());
59  
60                  if ((obj != null) && obj.equals(model)) {
61                      contains = true;
62                  }
63              }
64  
65              if (model.isNew()) {
66                  session.save(model);
67              }
68              else if (!contains && !session.contains(model)) {
69                  session.saveOrUpdate(model);
70              }
71          }
72  
73          if (!isEnabled()) {
74              session.flush();
75  
76              return;
77          }
78  
79          if ((_counter.get() % PropsValues.HIBERNATE_JDBC_BATCH_SIZE) == 0) {
80              session.flush();
81              session.clear();
82          }
83  
84          _counter.set(_counter.get() + 1);
85      }
86  
87      private static final Long _INITIAL_COUNTER = new Long(1);
88  
89      private static ThreadLocal<Long> _counter =
90          new InitialThreadLocal<Long>(_INITIAL_COUNTER);
91      private static ThreadLocal<Boolean> _enabled =
92          new InitialThreadLocal<Boolean>(Boolean.FALSE);
93  
94  }